2 is also more efficient and secure

It comes in two shell sizes for optimal fit and maximum comfort

Freedom for Internal Porosity

Thanks to the pre -treated design

Universal mounting: Can be used both front and back on most models

K & N FILTER AIR TRI ROCKET III TB-2204 kawasaki-gpx-600-r--zx600c--600-1991-esi5920603 2 is also more efficientFits Directly Into Oem Airbox With Application Specific Sea Sea Bead to Ensure A precise fit, Fuel Management Modifications are not required for Increased Performance, Pleated Media Provides A Large Filter Area Offering Long Service Interview, Washable and Reusable and Reusable INCREASED PERFORMANCE, MADE IN THE US